﻿<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>禁止页面加入缓存</title>
    
</head>
<body>
<input type=text name="txt1" value="this is test!">
<input type=button value="转换文本" onClick="javascript:changeCase(txt1)">
</body>
</html>